ello' i was wondering what the main difference is when a ballast is wired at 120v vs 240v. say on a 400w or 600w hps
frostymcfailure Reviewed by frostymcfailure on . ballast 120 240v ello' i was wondering what the main difference is when a ballast is wired at 120v vs 240v. say on a 400w or 600w hps Rating: 5